This function allows the user to morph the selected mesh region by using a node within the selected element domain as the control point. All elements within the region must be selected without excluding any elements from the region. The operation of these functions is similar to those described in the SURFACE MORPHING.
1) Select a group of elements to morph.
2) The following message is printed in the message prompt window:
SELECT CONTROL NODE FOR MORPHING
Select any interior node from the selected element group.
3) After the node is selected, the dialog box as illustrated in Figure 6.5.9 is displayed.
Figure 6.5.9 Morphing Options
The drop down button allows the user to select type of constraint for morphing. The description of each constraint type is discussed in Section 5.1.15.
After a constraint type is selected, enter the morph increment in the dialog box. Click on the + or - button to morph the surface. The user may use the NEW CONTROL NODE option to select another interior node on the surface as the control node. Figure 6.5.10 illustrates a typical result (red) generated by element interior morphing.
Figure 6.5.10 An illustration showing a typical result generated by Element Interior Morphing
4) Click on EXIT button to update the morphed elements and display the SELECT ELEMENTS dialog box.
5) Select other element to repeat the operation or click on CANCEL button to exit the function.